An anti-fall safety bracket for a construction elevator

Abstract

The purpose of the present invention is to provide an anti-fall insurance bracket for a construction hoist. An inclination travel switch is installed on the top of the insurance bracket, and methods such as increasing the gravity arm of the hoisting cage are used so that the hoisting hoist in operation will not rise to the standard of potential safety hazards. Before the dangerous joint of the joint, the control system detects the dangerous signal, triggers the action of the controller to cut off the power supply, and makes the cage stop suddenly under the dangerous joint. At the same time, through the anti-support function of the insurance bracket, the overturning of the standard section above the dangerous joint is further prevented, and the vicious safety accidents of the hanging cage and the standard section falling from a high altitude and the occurrence of aircraft crash and death are avoided.

Description

technical field [0001] An anti-fall safety bracket for a construction elevator relates to the field of anti-fall safety for high-altitude operations, in particular to an anti-fall safety device for an SC-type building construction elevator. Background technique [0002] SC type building construction elevator is a kind of elevator relying on rack and pinion transmission. It is commonly used in construction sites and is used for the transportation of people and goods in high-rise buildings. The lifting track of the SC type building construction hoist is composed of multiple standard sections spliced ​​together, and the standard sections are connected with four connecting bolts. When the connecting bolts on the standard section are missing, the nuts are not tightened, or the screws are slipping under abnormal conditions, when the staff drives this kind of construction elevator with potential safety hazards for operation, the standard section will break, causing the cage to fall...

AI Technical Summary

Problems solved by technology

When the cage rises to the dangerous junction higher than the standard section, the distance between the center of gravity of the cage and the standard section is the moment arm of the cage, which instantly increases several times than before, and the overall gravity of the cage produces The torque of the standard joint far exceeds the reaction torque produced by the standard joint's own gravity, which causes the standard joint to break and the construction elevator to overturn.

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